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[Solved] “Treating warnings as errors because of process.env.CI = true”

Kapil Pandey on July 23, 2020

Did deploying your code to netlify failed and in logs you are getting Treating warnings as errors because of process.env.CI = true If yes then yo...

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Militus • Nov 30 '20 • Edited

I did CI=false npm run build and it worked :)

saurabh daswant • Oct 19 '21

yup worked for me too

Bakhodir • Jan 20 '21

Worked for me too

João Amadeu • Jan 14 '22

Worked for me too, I tested on Vercel and Netlify.

Aditya Narayan Sah • Apr 12 '21

Fix

Log in to Netlify
Choose your app and click on Site settings
Navigate to Build & Deploy
Under Continuous Deployment select Edit settings
Scroll down to Environment variables and add a new Variable with the following values

CI = false

Raymart Evangelista • Dec 1 '22

Worked for me too!

drahdavid • Feb 7 '22

Thank you so much for the fix and the explanaition. CI=false npm run build worked for me.

juan • Mar 21 '22

ty! worked for me deploying a react app to vercel
just override the build command with CI= npm run build

Nitika Sharma • Feb 18 '22

It worked! Thanks :)

desdamo • Mar 2 '21 • Edited

Hello. I tried différents write but didn't work with vercel. Can you help me please?

"scripts": {
"start": "craco start",
"build": "CI='' yarn build",
"test": "craco test",

"eject": "react-scripts eject"

KelahKelah • Jan 21 '21

Thanks. This solved the problem for me.
I used yarn and already had a yarn.lock file so automatically the Build command already had 'yarn build' so all i did was add CI = to the yarn build and it worked.
Like
Build command: CI= yarn build.

But for npm it would be
Build command: CI= npm run build

Militus • Nov 30 '20

Hi, I'm almost completely new. I tried CI= npm run build but it didn't work, I guess I'm doing sth wrong. Any ideas on how to fix this on vercel?

Josias Aurel • Dec 3 '20 • Edited

On vercel and netlify, setting CI to false in environment variables make it work XD

Ahmed Sarhan • Dec 12 '20

I just signed in to say thank you ... this saved my day

Chaz Kiker • Jan 7 '21

retweet

Sungguk Cho • Mar 23 '22

THANKS !!

CI=false npm run build
working in gitlab ci
but in other cases, i think
Ci='' would be good
because sometimes the false string means true not false

reference below
docs.netlify.com/configure-builds/...

Lucas Magalhães • Oct 4 '20

Thanks!! You saved me! I'm happy now. x)
covid19-pwa.netlify.app/

Kapil Pandey • Oct 7 '20

Glad to be of some help!

Over Martinez • Jul 8 '22

Hi everyone!
I'm getting an error with CI but with the test commands, I have this in my package.json:

"test": "TZ=UTC razzle test --env=jsdom",
"test:ci": "CI=true yarn test",

When I run on my local machine the command yarn run test it works perfectliy fine on all tests, however when I run yarn run test:ci sometimes it fails 1 or 2 tests sometimes pass all of them, the results are so random.

According to what all of you are saying here, I changed "CI=false ... but still the same

Someone can help me!? 🙏

Justin Patel • Feb 1 '21

Thanks, worked like a charm for me. 😉

Thang Truong • Oct 25 '22

Hi Everyone,

CI= npm run build

This worked well.

Thanks

Radi-dev • Jan 5 '22

CI=false npm run build worked for me.
Thanks

Ned Marafawi • Jan 2 '22

This actually fixed my issue!! Thank you so much :)

Victor Eke • Sep 10 '21

This just saved me. Thanks Mate!

Ashley Moon • Jul 18 '21

Thank you! So helpful 😊

sruthiragupathy • Mar 31 '21

Thank you it helped

enoralecuyer • May 26 '21

Thank you so much!

Alejandro Vivas • Mar 31 '21

Thank you!!

Emmanuel Amodu • Mar 17 '21

Thanks a lot just helped me after days of struggling...wheeww

RobK-AA • Jan 18 '21

Just made an account to thank you for this!

Shiva shankar • Jan 11 '21

Big thanks to you

mrsaadDev • Jan 8 '21

thankyou!

angelis-reis • Dec 26 '20

Thanks o lot. Works like a charm, using: CI=false npm run build

Akinn Rosa • Dec 5 '20 • Edited

works here on vercel deploy, nice job!

donvitocodes • Jun 5 '21 • Edited

Thanks! This worked for me. I used this for yarn.

CI=false yarn run build

Sonal Jain • Apr 17 '21

Thank you!

Aditya shekhar • May 18 '21

Thanks

Prince • Dec 15 '22

Wow thanks! I did CI=false npm run build and it worked fine 😁😁. I wish i had known this sooner, i had to commit my node_modules folder to github before i found this solution 😥